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The maker of the Elka shutter is not known for sure. Some versions have T.B.C.T. markings or a TB logo.

A Semi Elka 4.5×6cm camera is reported in the official price list dated November 1941, where it is attributed to the company Banno Toyoji Shōten, which is otherwise unknown.[1] The "TB" logo might stand for Toyoji Banno, but this is merely a guess.

It seems that the first versions of the Elka shutter were dial-set, up to mid-1936, and that it became rim-set after that date.[3]

The early dial-set Elka has 25, 50, 100, B, T speeds selected by a flat wheel at the top.[4] The name ELKA is inscribed in capital letters on the speed wheel cover and the initials T.B.C.T. are written in small capital letters underneath. There is a hole under the lens for a thread and needle release device, and no logo is visible.

The late dial-set Elka has the same speeds engraved in the reverse order on a conical wheel, engraved ELKA at the front.[5] The hole for the thread and needle release is at a slightly different location, and the front plate has a TB logo on the right.

The plain Elka has B, 25, 50, 100 speeds set by an index, and the name Elka in small letters at the top of the shutter plate.[6] Some illegible text is also written at the bottom.

The Elka-C has 10, 25, 50, 100, 150, B, T speeds set by turning the rim. The front plate has the words Patent–Pending at the top, ELKA–C at the bottom and a TB logo on the right.[7] One example is known with the same name and markings but 100, 50, 25, B, T speeds only; however this particular example was crudely repaired during World War II, and its speed rim was perhaps substituted.[8]

An Elka-B is also reported, giving T, B, 5–200 speeds, but has not been observed so far.[9]